This Compact Home Lab Fits on Your Desk (And Actually Works)

There's a specific type of tech project that feels like it shouldn't exist but does: the compact home lab that doesn't require you to sacrifice an entire room or your electric bill. YouTuber Raid Owl just built one, and the engineering decisions behind it are more interesting than the size flex.

The setup includes a dedicated network-attached storage device, a virtualization host, proper networking infrastructure, a UPS for power protection, and remote access—all in a footprint smaller than most gaming PC builds. The whole thing pulls 50 watts under minimal load. For context, that's less than some gaming laptops use while idle.

What makes this worth paying attention to isn't just the compactness. It's the architectural choices that make it actually functional rather than just technically possible.

The Split That Actually Matters

Most home lab setups combine storage and virtualization on one machine because it's simpler and cheaper. Raid Owl deliberately separated them, using a ZimaBoard 2 for the NAS and a GMKtec K15 mini PC for virtualization. This isn't just preference—it's a reliability decision.

"I like having my storage separately in the event that either my virtualization host or storage host needs to be updated or something, I don't have to take down the other one," he explains in the video.

This matters more than it might sound. If you're running a media server, file shares, and various VMs on the same box, updating the hypervisor means everything goes dark. Split them, and you can update your virtualization platform while your family still streams Plex. It's the difference between "quick maintenance" and "why is nothing working."

The ZimaBoard 2 is genuinely interesting hardware for this use case: Intel N150 CPU (low power), 16GB RAM, dual 2.5 gigabit Ethernet ports, two SATA ports, and PCIe expansion. The whole board is tiny. Raid Owl loaded it with two 12TB drives in a mirrored configuration for about 10TB of usable storage, plus an NVMe drive for faster file sharing.

It comes with ZimaOS pre-installed, which is designed specifically for this kind of setup. Setting up network shares is apparently as simple as right-clicking folders and hitting "share." Both the hard drive array and the NVMe drive hit 2.5 Gbps transfer speeds in testing—exactly what you'd expect when that networking speed is your bottleneck.

Power Without the Power Bill

The virtualization host is where things get more capable. The GMKtec K15 rocks an Intel Core Ultra 125U with 12 cores and 14 threads, 32GB of RAM, and three NVMe slots. More importantly, it includes an Oculink port—which Raid Owl calls "the most affordable mini PC you can get with an Oculink port."

Oculink is PCIe expansion via external connection. Want to add a GPU for AI inference later? Plug it into an Oculink dock. Need specialized hardware? Same deal. It's expandability without internal space requirements.

The machine ships with Windows 11, but Raid Owl swapped it for Proxmox—a virtualization platform that's become something of a standard in home lab circles. He installed two NVMe drives in a boot mirror configuration so if one fails, the server keeps running.

"Proxmox is, in my opinion, the best pure virtualization server operating system, but you're free to argue down in the comments," he notes, perfectly capturing the tone of tech YouTube.

From there, the possibilities expand: Linux VMs for testing, Windows VMs for whatever you're pretending you don't need Windows for, LXC containers, Docker instances, game servers, photo management with Immich, proper VPN with Tailscale. The Intel Arc graphics include hardware transcoders, making it solid for media servers.

The Networking Twist

Here's where it gets nerdy in a useful way. Both devices connect through a compact six-port unmanaged switch from Sodola—four 2.5 gigabit ports and two 10 gigabit SFP+ ports for $36. Raid Owl acknowledges it's "just a mass-produced Chinese switch that probably gets branded under a zillion different names," but at that price point, functionality matters more than pedigree.

That gets them connected and communicating at full 2.5 Gbps speeds. But Raid Owl added a second connection: a direct link between the two devices using their second Ethernet ports.

This gives them a dedicated communication path that bypasses the switch entirely. The ZimaBoard's second interface gets configured with a static IP on a /31 subnet (which is networking speak for "exactly two devices"). The Proxmox host gets a matching configuration with an IP one number higher.

Now the virtualization host can access the NAS shares directly without competing for bandwidth with other network traffic. It's a clever use of available ports that most people wouldn't think to implement. Raid Owl uses this dedicated connection for backups, disk images, ISOs, and containers—exactly the kind of high-bandwidth transfers you don't want competing with regular network traffic.

The Pieces Most People Skip

The UPS is a Tripp Lite unit rated for 600VA/300W with about five minutes of runtime at half load. That's not meant to keep everything running through an extended outage—it's protection against power fluctuations and enough time to gracefully shut down during a real outage. At 50 watts total system draw, it'll last considerably longer than those five minutes anyway.

The last addition is a remote KVM (keyboard, video, mouse) that lets you control the devices through a web browser. The predictable response is "why not just use Remote Desktop?" Raid Owl addresses this directly: what happens when software crashes or you need BIOS-level access? Hardware-based KVM keeps working when software solutions fail.

What This Actually Demonstrates

The interesting thing about this build isn't that it's small—it's that it makes thoughtful tradeoffs. Not the smallest possible. Not the most powerful. Not the cheapest. But a functional balance that covers real use cases: media serving, file storage, VM hosting, Docker containers, backups, remote access.

The separation of storage and compute makes maintenance cleaner. The direct device connection optimizes the most critical data path. The power efficiency means you can actually leave it running 24/7 without guilt. The expansion options (PCIe on both devices, Oculink on the host) mean you're not locked into today's configuration.

It's the kind of build that works because someone thought about how they'd actually use it rather than just maximizing specs or minimizing size. Sometimes the engineering is in the architecture, not the components.

—Zara Chen, Tech & Politics Correspondent